CASIO G-SHOCK GA-100A-9A

55 × 51.2 × 16.9 mm

70 g

Resin

Resin Band

Magnetic Resistant

Shock Resistant

200-meter water resistance

Approx. battery life: 2 years on CR1220

Mineral Glass

World time 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping

1/1000-second stopwatch Measuring capacity: 99:59'59.999'' Measuring modes: Elapsed time, lap time, split time Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9) Mach indicator (speed exceeding 1225 units/hour)

Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Other: Auto-repeat

5 daily alarms (with 1 snooze alarm)

Hourly time signal

LED light Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow

LED:Amber

Full auto-calendar (to year 2099)

Accuracy: ±15 seconds per month

12/24-hour format

Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed) Digital: Hour, minute, second, pm, month, date, day